Function forest_actor::util::smooth::extrapolated_cum_sum_of_ratio

pub fn extrapolated_cum_sum_of_ratio(
    delta: ChainEpoch, 
    relative_start: ChainEpoch, 
    est_num: &FilterEstimate, 
    est_denom: &FilterEstimate
) -> BigInt

Extrapolate the CumSumRatio given two filters.